Tool-mounting eor lathes



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Patented Dec. 23, 1919'.

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' APPLICATION FILED OCT. l4. I918. I X 1,326,138. Patented Dec. 23,1919.

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APPLICATION FILED OCT. I4, 1918.

Patented Dec. 23, 1919.

3 SHEETS-SHEET 3.

[men%@z3 we Jaiman wPumam 6 UNITED STATES PATENT onion SALMON W. PUTNAM', 8n, OF ROCHESTER, NEW YORK, ASSIGNOR TO ARTHUR H. INGLE,

OF ROCHESTER, NEW YORK.

TOOL-MOUNTING FOR LATHES.

Specification of Letters Patent.

Application filed October 14, 1918. Serial No. 258,012.

To all whom it may concern Be it known that I, SALMON W. PUTNAM, 3d, a citizen of the United States, and resident of Rochester, county of Monroe, State of New York, have invented .an Improvement in Tool-Mountings for Lathes, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts in each of the several views.

This invention relates to turret tool heads adapted for mounting a plurality of opera tive tools in a lathe, or the like, and while having other and more general fields of usefulness is well adapted and designed for mounting and clamping for. selective use, difi'erent tools such asroughing and forming tools in a tire turning lathe such as commonly used for initially finishing car or truck tires, and for re-finishing such tires after the treads thereof become worn in use. A principal object of the invention is to provide means whereby the several tools are mounted so that they may be used selectively and any given selected tool clamped rigidly and securely for use by a simple manipulation quickly and easily efiected. A further object is to provide simple and compact yet reliable and conveniently operated means preferably having only a single operating lever or member adapted to move the tool turret into clamping or looking position and by a continua--- tion of the samemovement to lock the turret rigidly, strongly and immovably in operative position and in a manner so as to minimize or wholly eliminate any possibility of chattering or vibration. A still further object is to provide improved operating means for controlling and locking the turret preferably consisting in an adjustable toggle device that may be set so as, to move into full locking position just as the turret is securely clamped by a clamp ing member operated by such toggle. A

1 still further object is to provide improved locking means directly engageable with the base of the turret and presenting clamping faces having portions inclined in opposite directions to the direction of clamp ng pres sure whereby the turret is centered, and

clamped powerfully with a wedgingaction that. iscombined with the operative effect oftheitoggle device acting thereon. The

foregoing and other objects and advantages of the invention will more fully appear from the following detailed description, and the distinctive features of novelty will be pointed out in the appended claims.

Referring to the drawings:

Figure 1 is a plan view of a tool turret equipped with locking means in accordance with my invention and showing a portion of the slides of a lathe to which the same may be applied;

Fig. 2 is a side view of a turret and the slides on which it is mounted with a por- Fig. 7 is a detail section on line 77 p of Fig. 6; and

Fig. 8 is a rear edge view of the member shown in Fig. 6.

10 indicates a portion of the relatively fixed tool base of the lathe which is located between the opposing face plates (not shown) when the device is used in a double tir turning lathe, this base being equipped with a transverse dove-tailed way 11 on which is fitted for transverse adjustment a main cross slidelQ, it being understood that in a double type of lathe, two of these cross slides will be employed adjacent the respective base plates. On a dove-tail way 13 of this cross slide is mounted for adjustment endwise of the lathe an intermediate slide 14, the top whereof is equipped with a slide way 15 to which the top slide 16 bearing the turret of the present invention, is mounted for adjustment transversely .of'the lathe and radially ofthe work. This adjustment of thetop slide 16 on the way 15 is accomplishedas shown by a screw 17 swiveled at 18 in a depending apron flange 16 at the front of the top slide, this screw taking into a stationary nut (not shown) in the intermediate slide 14. The

has moved the turret sufiiciently to permit turning thereof, a stop pin 55 may be provided set into the slide 16 in position to be engaged by the clamp slide 2%. By the described mechanism the turret is powerfully and accurately located and is powerfully and securely locked in position to hold either of the roughing tools or either of the forming tools in operative position and the control thereof for moving the turret to locking position and then looking it, as well as for moving it away from looking position to release it for turning, are. all accomplished by the single lever arm 42, the provision of the toggle device as described making 7 the turret clamping mechanism selflocking as it reaches clamping position and th turnbuckle device permitting the degree of clamping pressure exerted in this locking position to be set as desired as with pro vision for the taking up of looseness due to wear or otherwise. The handle 42 sloping inward when in turret clamping position contributes to the holding of the toggle device locked and against casual displacement thereof. I am aware that th invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and I therefore desire the a present embodiment to be considered in all respects as illustrative and not restrictive, referenc being had to the appended claims rather than to the foregoing description to indicate the scope of the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. Apparatus of the kind described, comprising a tool turret mounted for angular adjustment to a plurality of operative positions, a seat to which said turret is fitted, and means for clamping said turret to said seat having a lost motion connection to the turret whereby it first moves to release the turret for moving with respect thereto and then moves the turret to release it for turn ing with respect to said seat or vice versa.

2. Apparatus of the kind described, comprising a turret mounted for angular adjustment to present any one of a series of operating tools, a mounting for said turret, said turret and said mounting having the one a polygonal base and the other a polygonal walled socket seat to receive said base, and means associated with said seat andoperative transversely against said base for clamping said base to said seat. i

3. Apparatus of the kind described, comprising a turret mounted for angular adjustment to present anyone of a series of operating tools, a mounting for said turret, said turret and said mounting having the one a polygonal base and the other a polygonal walled socket seat to receive said base, and means for clamping said base to said seat, said means consisting in a clamp slide formed to engage one or more of the sides of said polygonal base.

4. Apparatus of the kind described, comprising a turret mounted for angular adjustment to a plurality of operative positions and also for limited bodily lateral movement, a seat to which said turret is fitted, said turret and seat having cooperative provision whereby the turret may be clamped against angular displacement in operative position, and clamping means to lock said turret in adjusted position having means associated therewith for moving the turret bodily into and out of locking position.

5. Apparatus of the kind described, comprising a tool turret having an undercut polygonal base, a mounting therefor having a socket seat with undercut walls. finished to engage one or more of the sides of said turret base, and a clamp slide having an undercut edge formed to engage said turret base and having a lost motion connection thereto for the purpose stated.

6. In combination, a tool turret having a polygonal undercut base, a mounting there for having a socket seat with undercut walls to which said base may be clamped, a clamp slide to engage said base, and toggle operating means for said clamp slide arranged to move said slide to full locking position as said toggle is straightened.

7. In combination, a tool turret having a polygonal undercut base, a mounting therefor having a socket seat with undercut walls to which said base may be clamped, a clamp slide to engage said base, and toggle op erating means for said clamp slide arranged to move said slide to full locking position as said toggle is straightened, said toggle having incorporated therewith a turnbuckle element permitting adjustment thereof for the purpose stated. 7

8. In combination, a tool turret having an undercut polygonal base, a slide mounting therefor having a socket seat in which said base is fitted equipped with inclined undercut walls adapted to mate with walls of said base, a clamp slide adapted to engage other undercut walls of said base and having a lost motion connection to the turret, and 0p crating means for said clamping slide consisting in a toggle equipped with an adjustable turnbuckle element.

In testimony whereof I have signed my name to this specification.

SALMON W. PUTNAM, 8D. 

